Steam boiler



Aug. 18, 1931. wqo 1,819,350

STEAM BDILER- Filed June 18. 1929 2 Sheets-Sheet 1 Aug. 18, 1931. J. wooD 1,819,350

STEAM BOILER FileqL June '18, 1929 2 Sheet s-Sheet 2 Jarrett Bl V50 Z INVENTOR ATTORNEY Patented Aug. 18, 1931 UNITED STATES JARRETT B. WOOD, OF TULSA; OKLAHOMA STEAM BO LER Application filed .Tune 18,

One of the objects of my said invention is the provision of a steam 'boiler of high efiiciency in proportion toits size.

Another object is the provision of a boiler in which steam is generated in the lower portion of the boiler, is caused to rise through a centercolumn, is preheated enroute upward to an upper steam chamber, and is then passed to superheated coils and from the coils directly to the point of use. 7

Another object is the provision in a steam boiler of a peculiar and advantageous casing.

Another object is the provision of a practically advantageous coupling.

Other objects and practicable advantages of the invention will be 'fully understood from the following description and claims when the same are read'in connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a sectional perspective illustrative of a preferred embodiment of my invention.

Figure 2 is an enlarged view comprising disconnected parts of the novel and 'advantageous couplings hereinafter explicitly described. c

Figure 3v is a viewpartly in perspective and partly in section showing the receiver 5 for superheated steam and certain connections appurtenant thereto. 7

Figure 4 is a detail perspective illustrating the lower and upper head and the steam column interposed between the same.

Figure 5 is a fragmentary perspective illustrating the foraminous upper. portion of the steam column, constituting a baffle.-

Similar numerals of reference designate corresponding parts in all of 'tlIG VlQWS'Of the drawings. I

Among other elements my novel boiler comprises a lower head 1, a steam column 2 and an upper head 3, the column 2 communicating with the interior of the. lower head 1 and being extended through the upper head 3 to the upper wall thereof, and being provided opposite the interior of the head 3 with a bafile portion 3a; in which are perforations 29 for the passage of steam from the interior of the column 2 to the in- 1929. Serial No. 371,820.

terior of the head 3'. At 27 the lower head 1 is providedwith-a water inlet as shown in Figure 4, and at4 couplings are associated with the lower wall of the upper head 3.

' Superheating coils 5 are disposed in the superheating chamber 15 and are grouped aboutthe steam column 2. The upper ends of the superheating coils 5 are-attached to thelower wall of the head 8 and areput into communication with the interior of the head 3 through'the mediumbfcouplings referred to, one of which is illustrated in-detail in Figure 2. Thesaid couplings are identicalinflconstruction andlthe'refore a detaileddescriptijon oftheone in 'Figuref2 will sufiice to impart a definite understanding of all,- Said coupling 4 comprises an ,upper member 400 closed at its upper end and open at its lower end and exteriorly threaded at 5x and having perforations ca, also having a lower enlarged portion 752 to form a shoulder for opposition to the lower wall of the head 3, lower'member 8m joined to the M upper end of one coil 5' and having-a taper seat 900 in its upperend'to receive thecorrespondingly tapered lower end of the memher 4%, and a headed'bolt 10% passed upwardly through the members Smand 400 and threaded into a socket 1103 in the upper end of the member 400. By virtue of the con struction described the upper end of the coils 5-are strongly connected to the head 3, andthis in'such manner that when occasion demands the coils-5 may be eXpedi tiously 'andeasily disconnected from the said head 3. T' V The lower ends of the coils 5 are preferably merged into upright portions grouped H about'the steam column 2, and the said up right portions are connected by unions 26 with the] lower'ends of pipes 6 which are carried through the upper head 2 and are connected, inturn, with areceiver for superheated steam 7,jsaid receiver 7 being disposed above the upper head 3 and being equipped with a steam ejection pipe 9 connected by union 28 with a pipe lO' designed to lead superheated steam to an engine or other point of use The pie 9 is connected to the receiver 7 through the medium of a coupling 8 which is of the same construction as the coupling 4, before described, except that the coupling 8 is inverted. Compare Figures 2 and 3. I

A fire box is designated by 11, and from the said fire box interior, fiues 12 lead through the lower head 1 to the superheating chamber 15.

Flues 13 lead through the upper head 3 and effect connections between the superheating chamber 15 and the uppermost heating chamber 16 which latter has an outlet at 17 for products of combustion.

Long flues 14 are arranged in spaced relation in the steam column 2 and lead from the interior of the fire box 11 to the interior of theupper heating chamber 16 as will be readily discerned in Figure 1.

In the practical use of my novel boiler the steam is generated in the lower portion of the boiler and passes upwardly through the column 2, and consequently the steam is preheated on its way upward to the steam chamber 3, this by virtue of the fact that when opposite the interior of the chamber 3 the steam encounters the foraminousbaflie 3m, before described, and from the steam chamber 3 thesteam passes through the coils5 wherethe steam is superheated, and from the saidcoils 5 the steam passes directly to the receiver 7, and from said receiver 7 is taken through the pipes or conduits described, to the engine or other point of use. From this it follows that steam superheated in the coils 5 does not come in contact with the preheated steam.

In addition tothe casing or jacket portion 18, the casing .or jacket includes the lid 19 .flanged to the portion of the casing belowit and easily removable to afford access to the upper heat chamber 16. Seated in the lid 19 is a loose cover 20.

At 21 is the chassis of the boiler, and at 22 is a bracket, said bracket being riveted to said chassis as illustrated.

The said bracket 22 is provided at its lower end, with a flange which serves as a rest for the casing or jacket, and the said bracket 22 is provided with an outwardly directed upper portion to serve as a rest over the top of the chassis 21. At 23 are tie rods connected to fittings 24 and having their lower ortions passed through apertures forme in the bracket 22 and chassis 21 and threaded below the flange of the chassis to receive a nut and equipped between the nut and the chassis flange with an expansion spring designed to permit of the necessary expansion and contraction. Eye bolts 25, see Figure l, are employed for the suspension of the fire box 11 from the bracket 22. a

It will be apparent from the foregoing that products of combustion pass from the fire box 11 through the flues 14 to the upper heating chamber 16, and products of combustion also pass from the fire box 11 through the lines 12, the superheating chamber 15and the fiues 13, in the order named, to the upper heating chamber 16, and from said chamber 16 the products of combustion pass as before stated out through the outlet 17, Figure 1.

Any desirable burner or other heating means may be employed in the fire box 11, within the purview of my invention.

Ihave entered into a detailed description. of the construction and relative arrangement of parts embraced in the present and preferred embodiment of my invention, so as to impart a full, clear, and exact understanding of the said embodiment. I do not desire, however, to be understood as limiting myself to the construction and relative arrangement of elements as illustrated, my invention being defined by my appended claims, within the scope of which modifications may be made without departure from my invention. 7

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is g 1. In a boiler, the combination of a lower head, an upper head spaced above the lower head, flues extending through said heads, a column in communication with the lower head and having a foraminous portion extending within the upper head and with its foraminations in communication with the I interior of said upper head, fines extending through the column, a fire box in communication with the lower ends of the latter flues, an upper heating chamber in communication with the upper ends of the flues, superheating coils in a chamber between the lower and upper heads and disposed about 7 the column and having their upper ends connected with the interior of the upper head, and a receiver located in the upper heating chamber and connected with the lower ends of the super-heating coils and having a conduit for carrying steam to the pointof use.

2. In a steam boiler, the combination of lower and upper spaced heads, a steam column communicating with the interior of the lower head and having a foraminous bafile portion extending within the interior of the upper head, fiues extending through the lower head, flues extending through the upper head, fiues extending through the lower head and the column, a casing forming in conjunction with the heads and column a superheating chamber, and superheating coils disposed in said chamberand connected at their upper ends with the upper head interior, a heating chamber above the upper head'and in communication with the fiues therethrough, a receiver disposed in said heating chamber and above the fines through the column, said receiver in communication with the lower ends of said superheating coils, and means for conducting superheated steam from said receiver.

3. In a steam boiler and in combination, a fire box, a Water and steam head arranged above said fire box, flues extending upwardly through said head, an upper steam head spaced above the first named head, flues through said upper head, a heating chamber above said upper head, a casing portion forming with the heads and a column a superheating chamber, the said column communicating with the lower end of the lower head and having a foraminous baflie portion extending within the upper head, flues extending through said column and leading from the fire box to the upper heating chamher, a receiver disposed in the upper heating chamber and equipped with means for conducting steam to a point of use, and superheaters connected with said receiver and disposed in said superheating chamber and also connected with the interior of the upper head.

In testimony whereof I aflix my signature.

J ARRETT B. WOOD. 

